Question

Var f : real ; i : integer; f: = 1; i: =2; while i > 1 do begin f: = f + 1 / i; i : = i -1; end;

Answer 1

Var f : real ; i : integer;
f: = 1; i: =2;
while i > 1 do begin 
f: = f + 1 / i; 
i : = i -1; 
end;
Write(f:0:3);
end.
Ошибка в том,что нет окончания.

Answer 2

It looks like you have provided a snippet of code written in a Pascal-like language. Let's go through the code step by step to understand what it does:

1. Var f: real; i: integer; This declares two variables: f as a real (floating-point) type and i as an integer type.

2. f := 1; i := 2; This initializes the variables f and i with the values 1 and 2, respectively.

3. while i > 1 do begin This starts a while loop that continues as long as the value of i is greater than 1.

4. f := f + 1 / i; Inside the loop, the value of f is updated by adding 1 / i. This means that 1 is divided by the current value of i, and the result is added to the variable f.

5. i := i - 1; Inside the loop, the value of i is decremented by 1 in each iteration.

6. end; This marks the end of the while loop.

Let's see how the loop works step-by-step:

1. Initial values: f = 1, i = 2.
2. Iteration 1: f = 1 + 1/2 = 1.5, i = 1.
3. The loop continues because i (1) > 1.
4. Iteration 2: f = 1.5 + 1/1 = 2.5, i = 0.
5. The loop terminates because i (0) is no longer greater than 1.

After the loop, the final values of the variables will be f = 2.5 and i = 0.